Developing a system dynamic model for pond irrigation system in paddy field

• Main Authors: Ruei-Shiang Shiu, 許睿翔
• Other Authors: Ray-Shyan Wu
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/r3s2j6

碩士 === 國立中央大學 === 土木工程研究所 === 94 === The water pond irrigation system in Taoyuan is a special irrigation area which differs from other irrigation area in Taiwan. Because the source of irrigation water is insufficient in Taoyuan before, farmer built water ponds in this region was in order to keep more rain water to irrigate farmland and increase the source of irrigation water. After the Taoyuan main canal and Shihmen Reservoir completed in 1928 and 1956, and the river weirs constructed, the mainly irrigation water was supplied from Shihmen Reservoir supply and the river weir intake. Besides, the modern water resource development joined with the old water ponds becomes the special irrigation system in Taoyuan. This research established a system dynamics model to imitate the Taoyuan main canal irrigation system. The model was developed with the use of VENSIM. Different irrigation procedures were simulated to evaluate the efficiency that can be introduced by incorporating the ponds, weirs and channels. The influence of irrigation depth is discussed. Such model can be applied to identify a better irrigation method to promote water resource efficiency.